161035634 has 4 divisors (see below), whose sum is σ = 241553454. Its totient is φ = 80517816.

The previous prime is 161035613. The next prime is 161035657. The reversal of 161035634 is 436530161.

It is a happy number.

161035634 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 436530161 = 431 ⋅1012831.

It can be written as a sum of positive squares in only one way, i.e., 152596609 + 8439025 = 12353^2 + 2905^2 .

It is a junction number, because it is equal to n+sod(n) for n = 161035597 and 161035606.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40258907 + ... + 40258910.

Almost surely, 2^161035634 is an apocalyptic number.

161035634 is a deficient number, since it is larger than the sum of its proper divisors (80517820).

161035634 is an equidigital number, since it uses as much as digits as its factorization.

161035634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80517819.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 161035634 is about 12689.9816390726. The cubic root of 161035634 is about 544.0523148398.

Adding to 161035634 its reverse (436530161), we get a palindrome (597565795).

The spelling of 161035634 in words is "one hundred sixty-one million, thirty-five thousand, six hundred thirty-four".